Sealing structure of display screen backlight source
Through the design of the fixed frame and the sealing cover, and the use of the elastic sealing of the elastic frame and the aluminum alloy sealing cover, the sealing problem caused by the reduction of spring elasticity in the existing technology is solved, stable sealing and convenient replacement are achieved, the service life of the display backlight is extended, and the heat dissipation performance of the device is improved through the fan and damping rod structure.
Patent Information
- Application Number
- CN202520199939.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2035-02-08
AI Technical Summary
In the existing display backlight sealing structure, the elastic potential energy of the spring of the movable limit assembly decreases during use, resulting in poor sealing. The spring position is also inconvenient to replace, affecting the sealing and service life of the device.
The design adopts a fixed frame and sealing cover, and the elastic force of the first and second elastic frames and the sealing frame is used to achieve sealing. The components are bonded for easy replacement, and heat is dissipated through the aluminum alloy sealing cover and the fan. The damping rod and sleeve consume external force, thereby improving sealing and convenience.
The stable sealing of the display backlight is achieved to prevent air leakage, improve the sealing and convenience, facilitate component replacement, extend the service life, and maintain the performance of the device through the heat dissipation structure.
Smart Images

Figure CN223399740U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing structures, in particular to a sealing structure of a display screen backlight source. Background Art
[0002] The sealing structure of a display backlight is a key factor in ensuring proper operation and improving display quality. This sealing structure primarily protects the backlight components, preventing them from being adversely affected by external environmental factors (such as moisture, dust, and oxygen). This sealing technology ensures stable brightness and color performance over extended periods of use. Currently, sealed display backlight structures are widely used in various electronic devices, such as mobile phones, tablets, laptops, and televisions. When these devices are used outdoors or in humid environments, the sealing structure ensures proper display operation and enhances the user experience.
[0003] The prior art provides a sealing structure for a backlight source and a display screen (Announcement No.: CN210606468U). The device includes an inner shell; a display panel is provided on the surface of the inner shell; a backlight source is provided on the rear side of the display panel; a mounting hole is provided on the surface of the inner shell; first slots are provided on both sides of the mounting hole; both ends of the backlight source are provided in the first slots; a movable limiting mechanism is provided on the rear side of the backlight source; and the movable limiting mechanism is fixed to the inner wall of the inner shell.
[0004] However, the device still has the following defects:
[0005] When the device is in use, a movable limit assembly is used in the device to adjust the position of the fixed plate. However, the elastic potential energy of the spring in the movable limit assembly will gradually decrease during use, and the position of the fixed plate adjusted by the spring will gradually become smaller, which will affect the distance between the fixed plate and the sealing strip, and thus affect the sealing of the device. In addition, the installation position of the spring is relatively inward, which makes it inconvenient to replace the spring. Therefore, we need to propose a sealing structure for the display backlight source. Utility Model Content
[0006] The purpose of the present utility model is to provide a sealing structure for a display screen backlight source, wherein a fixed frame is installed on the backlight panel, and when the display is connected to the backlight panel, the display contacts the first sealing frame, and under the elastic force of the first elastic frame, the first sealing frame and the display are attached together, so as to facilitate sealing the side where the display is connected to the backlight panel, and at the same time, a sealing cover is installed on the outside of the fixed frame, and the fixed frame and the sealing cover seal the other side of the backlight panel. When the sealing cover is installed, the second sealing frame is attached to the sealing cover under the elastic force of the second elastic plate to prevent air leakage at the sealing cover. The positions of the first elastic frame, the second elastic frame, the first sealing frame and the second sealing frame are relatively obvious, and these components are all bonded, which is convenient for replacement, so as to solve the problems raised in the above-mentioned background technology.
[0007] To achieve the above objectives, the present invention provides the following technical solutions:
[0008] A sealing structure for a display screen backlight source comprises a shell, a display is arranged inside the shell, a backlight panel is arranged on the side wall of the display, a fixing frame is fixedly connected to the outer side of the backlight panel, an outer mounting frame is fixedly connected to the side wall of the fixing frame, a first elastic frame is fixedly connected to the interior of the outer mounting frame, a first sealing frame is arranged inside the first elastic frame, the first sealing frame is slidably connected to the display, an inner mounting frame is fixedly connected to the other side of the fixing frame, a second elastic frame is fixedly connected to the interior of the inner mounting frame, a second sealing frame is fixedly connected to the outer side of the second elastic frame, a sealing cover is slidably connected to the outer side of the second sealing frame, and the sealing cover is slidably connected to the fixing frame.
[0009] Preferably, the sealing cover is made of aluminum alloy.
[0010] Preferably, a filter plate is fixedly connected to the upper top of the housing, and a plurality of fans evenly distributed are provided at the lower bottom of the housing.
[0011] Preferably, a plurality of mounting bolts distributed in an annular manner are provided inside the sealing cover.
[0012] Preferably, a plurality of sliding grooves distributed in an annular manner are provided inside the fixing frame, and the plurality of sliding grooves are respectively slidably connected to a plurality of mounting bolts.
[0013] Preferably, a plurality of damping rods distributed in an annular shape are fixedly connected to the side wall of the backlight panel, and springs are sleeved on the outer sides of the plurality of damping rods.
[0014] Preferably, outer sides of the plurality of damping rods are slidably connected to sleeves, and the sleeves are fixedly connected to the sealing cover.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] The utility model is provided with a fixing frame, and the fixing frame is used to install the backlight panel. When the display is connected to the backlight panel, the display contacts the first sealing frame. Under the elastic force of the first elastic frame, the first sealing frame and the display are attached together, which is convenient for sealing the side where the display is connected to the backlight panel. At the same time, the sealing cover is installed on the outside of the fixing frame, and the fixing frame and the sealing cover seal the other side of the backlight panel. When the sealing cover is installed, the second sealing frame is attached to the sealing cover under the elastic force of the second elastic plate to prevent air leakage at the sealing cover. The positions of the first elastic frame, the second elastic frame, the first sealing frame and the second sealing frame are relatively obvious, and these components are all bonded, which is convenient for replacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural diagram of the utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the utility model;
[0019] Figure 3 The structure of the utility model Figure 2 A partial enlarged schematic diagram in the middle;
[0020] Figure 4 The structure of the utility model Figure 2 A partial enlarged schematic diagram of point B in the middle.
[0021] In the figure: 1. Housing; 2. Filter plate; 3. Fan; 4. Display; 5. Backlight panel; 6. Fixing frame; 7. External mounting frame; 8. First elastic frame; 9. First sealing frame; 10. Internal mounting frame; 11. Second elastic frame; 12. Second sealing frame; 13. Sealing cover; 14. Mounting bolts; 15. Slide; 16. Damping rod; 17. Sleeve; 18. Spring. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] See also Figure 1-4 , the utility model provides a technical solution:
[0024] A sealing structure for a display screen backlight source includes a shell 1, a display 4 is provided inside the shell 1, a backlight panel 5 is provided on the side wall of the display 4, a fixing frame 6 is fixedly connected to the outside of the backlight panel 5, an outer mounting frame 7 is fixedly connected to the side wall of the fixing frame 6, a first elastic frame 8 is fixedly connected to the inside of the outer mounting frame 7, a first sealing frame 9 is provided inside the first elastic frame 8, the first sealing frame 9 is slidably connected to the display 4, an inner mounting frame 10 is fixedly connected to the other side of the fixing frame 6, a second elastic frame 11 is fixedly connected to the inside of the inner mounting frame 10, a second sealing frame 12 is fixedly connected to the outside of the second elastic frame 11, a sealing cover 13 is slidably connected to the outside of the second sealing frame 12, and the sealing cover 13 is slidably connected to the fixing frame 6.
[0025] For example, the fixing frame 6 is installed on the backlight panel 5. When the display 4 is connected to the backlight panel 5, the display 4 contacts the first sealing frame 9. Under the elastic force of the first elastic frame 8, the first sealing frame 9 and the display 4 are attached together, which is convenient for sealing the side where the display 4 is connected to the backlight panel 5. At the same time, the sealing cover 13 is installed on the outside of the fixing frame 6. The fixing frame 6 and the sealing cover 13 seal the other side of the backlight panel 5. When the sealing cover 13 is installed, the second sealing frame 12 is attached to the sealing cover 13 under the elastic force of the second elastic plate to prevent air leakage at the sealing cover 13. The positions of the first elastic frame 8, the second elastic frame 11, the first sealing frame 9, and the second sealing frame 12 are relatively obvious, and these components are all bonded for easy replacement.
[0026] The sealing cover 13 is made of aluminum alloy.
[0027] For example, aluminum alloy is usually used to manufacture high-efficiency heat transfer devices such as radiators, heat conducting plates, and electronic components due to its good thermal conductivity and lightweight properties, which facilitates heat conduction to the backlight panel 5 and reduces the weight of the device.
[0028] A filter plate 2 is fixedly connected to the upper top of the housing 1 , and a plurality of fans 3 are evenly distributed on the lower bottom of the housing 1 .
[0029] Exemplarily, the fan 3 draws out the air inside the housing 1, increases the flow rate of the air outside the sealing cover 13, facilitates the heat dissipation of the sealing cover 13, and the outside air enters the filter plate 2, and the filter plate 2 filters the outside air.
[0030] The inside of the sealing cover 13 is provided with a plurality of mounting bolts 14 distributed in an annular manner, and the inside of the fixing frame 6 is provided with a plurality of sliding grooves 15 distributed in an annular manner. The plurality of sliding grooves 15 are respectively slidably connected to the plurality of mounting bolts 14. The side wall of the backlight panel 5 is fixedly connected with a plurality of damping rods 16 distributed in an annular manner. The outer sides of the plurality of damping rods 16 are all sleeved with springs 18. The outer sides of the plurality of damping rods 16 are all slidably connected with sleeves 17. The sleeves 17 are fixedly connected to the sealing cover 13.
[0031] For example, the sealing cover 13 is installed on the outside of the fixed frame 6 by means of mounting bolts 14. When external force impacts the sealing cover 13 through the outer shell 1, the mounting bolts 14 slide inside the slide groove 15, and the damping rod 16 slides inside the sleeve 17 to consume the force. At the same time, when the sealing cover 13 moves, the spring 18 is compressed, and the spring 18 stores the force, thereby protecting the backlight panel 5.
[0032] Working principle: When the present invention is used, the fixing frame 6 is installed on the backlight panel 5. When the display 4 is connected to the backlight panel 5, the display 4 contacts the first sealing frame 9. Under the elastic force of the first elastic frame 8, the first sealing frame 9 and the display 4 are attached together, which is convenient for sealing the side where the display 4 is connected to the backlight panel 5. At the same time, the sealing cover 13 is installed on the outside of the fixing frame 6. The fixing frame 6 and the sealing cover 13 seal the other side of the backlight panel 5. When the sealing cover 13 is installed, the second sealing frame 12 is attached to the sealing cover 13 under the elastic force of the second elastic plate to prevent air leakage at the sealing cover 13. The positions of the first elastic frame 8, the second elastic frame 11, the first sealing frame 9 and the second sealing frame 12 are relatively obvious, and these components are all bonded, which is convenient for replacement.
[0033] During use, the fan 3 draws out the air inside the housing 1, increases the flow rate of the air outside the sealing cover 13, facilitates the heat dissipation of the sealing cover 13, and the outside air enters the filter plate 2, and the filter plate 2 filters the outside air;
[0034] The sealing cover 13 is installed on the outside of the fixed frame 6 by installing bolts 14. When external force passes through the outer shell 1 and hits the sealing cover 13, the installing bolts 14 slide inside the slide groove 15, and the damping rod 16 slides inside the sleeve 17 to consume the force. At the same time, when the sealing cover 13 moves, the spring 18 is compressed, and the spring 18 stores the force, thereby protecting the backlight panel 5.
[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sealing structure for a display screen backlight source, comprising a housing (1), characterized in that: A display (4) is provided inside the housing (1), a backlight panel (5) is provided on the side wall of the display (4), a fixed frame (6) is fixedly connected to the outside of the backlight panel (5), an outer mounting frame (7) is fixedly connected to the side wall of the fixed frame (6), a first elastic frame (8) is fixedly connected to the inside of the outer mounting frame (7), a first sealing frame (9) is provided inside the first elastic frame (8), the first sealing frame (9) is slidably connected to the display (4), an inner mounting frame (10) is fixedly connected to the other side of the fixed frame (6), a second elastic frame (11) is fixedly connected to the inside of the inner mounting frame (10), a second sealing frame (12) is fixedly connected to the outside of the second elastic frame (11), a sealing cover (13) is slidably connected to the outside of the second sealing frame (12), and the sealing cover (13) is slidably connected to the fixed frame (6).
2. The sealing structure of a display backlight source according to claim 1, characterized in that: The sealing cover (13) is made of aluminum alloy.
3. The sealing structure of a display backlight source according to claim 1, wherein: A filter plate (2) is fixedly connected to the upper top of the housing (1), and a plurality of fans (3) that are evenly distributed are provided at the lower bottom of the housing (1).
4. The sealing structure of a display backlight source according to claim 2, wherein: A plurality of mounting bolts (14) distributed in an annular manner are provided inside the sealing cover (13).
5. The sealing structure of a display backlight source according to claim 1, wherein: A plurality of sliding grooves (15) distributed in an annular manner are provided inside the fixing frame (6), and the plurality of sliding grooves (15) are respectively slidably connected to a plurality of mounting bolts (14).
6. The sealing structure of a display backlight source according to claim 1, wherein: A plurality of damping rods (16) distributed in an annular pattern are fixedly connected to the side wall of the backlight plate (5), and springs (18) are sleeved on the outer sides of the plurality of damping rods (16).
7. The sealing structure of a display backlight source according to claim 6, characterized in that: The outer sides of the plurality of damping rods (16) are all slidably connected to sleeves (17), and the sleeves (17) are fixedly connected to the sealing cover (13).
Citation Information
Patent Citations
Sealing structure of backlight source and display screen
CN210606468U